Home / 55,175.76-82,775.88-20,115.32

Finding the Fourth Proportional to 55,175.76, 82,775.88 and 20,115.32

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Solution

The fourth proportional to 55,175.76, 82,775.88 and 20,115.32 is: 30,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,175.76 : 82,775.88 = 20,115.32 : x
  2. Step 2: Convert to fraction form
    55,175.76/82,775.88 = 20,115.32/x
  3. Step 3: Cross multiply
    55,175.76x = 82,775.88 × 20,115.32
  4. Step 4: Simplify right side
    55,175.76x = 1,665,063,314.48
  5. Step 5: Solve for x
    x = 1,665,063,314.48/55,175.76
  6. Step 6: Final answer
    x = 30,177.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.